A Microsoft file hosting and synchronization service.
If you have a win10 PC you will have OneDrive as part of Win and OneDrive Business as part of Office 365
And if you dont use OneDrive then set the default save locations in the Options of your Office Components
Thank you! It is a Win 10 PC. I don't use One drive for anything but uploading photographs and videos until I get time to more them to my PC. After I move them off, there are literally no files left on my One Drive that I can see, yet I keep getting a "One Drive nearly full" message.